Loose-leaf binder



March 23 1926. 1,577,563

R. J. COPELAND LOOSE LEAF BINDER Filed May 1924 Inventor ROAQ/J/ Cope/and Patented Mar. 23, 19.26.

UNITE LQOST -LEAF BINDER.

Application filed May 22,

To all whom it may concern."

Be it known that 1, ROBERT J. COPELAND, a subject of'the King of Great Britain, and

resident of the city of Toronto, county of York, Province of Ontario, in the Dominion of Canada, have invented certain new and usefulImprovements in Loose-Leaf Binders, as described in the following specification and illustrated in the accompanying drawings. r

The principal objects of this invention are, to facilitate the transferring of the sheets from a current binderto a per- .manent stora 'e' binder and to rovide a simple and cheap form of storage binder. which will accommodate varying quantities of sheets and is readily secured.

The principal feature of the invention "consists in providing'tubular posts upon in the novel construction of the tubular posts in interlocking sections.

In the drawings, Figure 1 is a perspective View of a current binder showing one of the posts in section.

Figure 2 is a perspective view of a por-' tion of a storage binder showing the sheets arranged upon the securing posts. I

Figure 3 is an end elevational view of a storage binder showing the manner of securing the sheets therein.

Figure 4 is a perspective detail of two sections of one of the tubular posts.

In loose leaf systems of accounting the 'leaves are threaded on to the posts of the current binder and are locked in place by the binder back and when these sheets have been completed it is necessary to remove them from the current binder and to file them for future reference. 1

It is desirable to provide a form of storage binder which will enable the keeping of the sheets removed from the current binder in proper form and capable of being easily examined.

Considerable difficulty is experienced in transferring sheets and it is the purpose of this invention to simplify this transference.

My invention consists in providing a tubular post for the current binder which may be removed therefrom and placed upon the storage binder, thus holding the sheets stares PATENT or lcE.

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1924. Serial No. 715,232.

together while they are being handled in changing from one binder to the other. It has been common practice to provide a built up binder post, that is the posts are made in short sections of about one-inch in length, each having a threaded-socket in the top end and a threaded stem in the bottom end, and when the first lot of sheets have been filled; the posts are extended by remove ing the caps. and inserting another post length.

It is my purpose to utilize this type of post but upon the post I place a sleeve length of a corresponding length to the post section and when more than one post section is used it is simply necessary to add a corresponding number of, sleeve lengths.

These sleeve lengths 1 have an internal diameter adapted to slip freely over the posts 2 and the threaded cap 3 which is larger than the post engages the top end of the uppersleeve and holds them securely in position. The Y sleeves are preferably formed with an L-shaped notch 4: in the upper end ,and all sleeves but the bottom ones are provided with L-shaped lugs 5 projecting from the bottom end, said lugs being adapted to extend into the notches at and to engage said notches through a slight turnmg movement of the sleeve so that the sleeves will remain locked together.

As the posts are extended by the addition of short lengths the sleeves may be extended accordingly and when the maximum number of sheets have been added to the current binder and it is desirable to transfer same it is'simply necessary to lift ofi the binder cover, then remove the post caps and by elevating the sheets 6 the sleeves 1 slip from the posts quite freely and the frictional contact of the sheets against the sleeves holds the sleeves securely fromdropping out and the sheets are also held in perfect alignment by the said sleeves and where the two sleeves join the overlapping of the lugs 5 prevents the sleeves from separating and a complete support for the sheets is thus maintained which enables them to be lifted off the posts as described without being separated or moved out of alignment.

The storage binder comprises a suitable cheap form of back 7 to which are secured a pairof posts 8 in the form of double strips of metal. These strips are here shown in the form of two flat strips rigidly secured together at points intermediate of their length,

" i1 vIsa posts and hold them from lateral or longitudinal movement substantially the same as a round post, but these flat strips are capable of being bent apart in order to hold the cover in place. These strip posts may be made any desirable length and when a transfer has been made and the cover 9 is placed in position the strips are separated and bent down over the cover. This provides a very rapid means for securing the cover in place and it will be readily understood that it accommodates itself to any depth of transfer sheets.

This fastener is described as being composed of a pair of strips secured together and arranged to coincide for their entirelength but it will be readily understood that one of the strips may extend into the hole in the binder back, While a supplementary strip might be attached to the upright end at its base if so desired, or it is not necessary that the posts should be connected though such an arrangement is preferable.

in the use of this binder as the current binder has sheets added thereto the posts and sleeves may be lengthened from time to time to accommodate the additions and when it becomes desirable to transfer from the current binder the caps are removed and the sheets are lifted bodily from the current binder posts, the sleeve members slipping off the post With the sheets. The divided post members 8 are then inserted through the tubular posts formed by the sleeves and vhen the cover has been placed over the removed sheets the ends of the posts 8 projecting thereabove are bent over.

The Whole operation is rendered extremely simple and the transfer nay be accomplished very rapidly.

What I claim as my'invention is 2-- 1. In a loose leaf binder, the combination With-the sheets and posts secured to the binder back, of tubular posts formed in short lengths adapted to'slip over the aforesaid posts to receive and hold the perforated sheets, said tubular posts having interlocking ends.

2. In a loose leaf binder, the combination with the sheets and posts secured to the binder back, of short lengths of tube adapted to lit over said posts and to engage said leaves, said tube lengths each having a notch in one end and a lug projecting from the opposite end to extend into the notch in the adjoining tube length and to interlock therewith.

3. In a loose leaf binder, the combination with the binder back, of posts formed of a yflnrality of short lengths each having a threaded socket at one end and a threaded stem at the other, tubular posts formed of short tube lengths corresponding with the length of the post lengths, and means for securing said tube lengths on said posts.

ROBERT J. COPELAND. 

